Things to keep an eye on are CPU, disk, and memory usage.

那么需要关注CPU、磁盘、以及内存使用情况。

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Process creation is expensive in terms of processor cycles and memory usage.

就处理器周期和使用的内存而言，创建进程的代价较高。

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Figure 4: Overview of thread status and memory usage in Rational Purify for Windows.

图4：Rational Purify for Windows中的线程状态和内存使用概况。

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Flash memory offers fast ways to cache and serve up digital content to support high usage virtual machine environments.

FORBES: VM World is a Flashy Place